The demonstration for county level program of soil and water conservation is discussed by applying systematical science theory.A series of theories are put forward to demonstrate the relevant points of the program, such as.the intergrative theoy to the systemetic point.the interrelating theory to the link degree.the methodical theory to the arrangement, the dynamic theory to the schedule.the decomposal and synthetical theory to the measure system, the creative ideology theory to the advantage.the identificational theory to the indexes system and the feedback theory to the feasibility.